Assig-noe of five



2Sh ts-She'et 1. (No Model) R- T. BARTON. ee

' NUT MACHINE. No. 316,866. Patented Apr. 28, 1885.

WITNESSES-:6 INVENTOR g M, I). M ezfibzfimw. g 4 B ATTORNEY n. PETERS.Phnlmlnhognphlr. Washhlghm. 0.1:.

(No Model.) 2 Sheets-Sheet 2.

R. T. BARTON.

NUT MACHINE.

No. 316,866. Patented Apr. 28, 1885.

I I. o 01 k I WITNESSES INVENTOR ATTORNEY N. PETERS Prwwmm w. wuningmn.D. c.

' I U ITED "STATES RICHARD T. BARTON, OF NEW HAVEN, CONNEOTIGUT,ASSIGNOR OF FIVE- SIXTHS TO ANDREW H.

snrrn, or SAME PLACE.

NUT-MACHINE.

SPECIFICATION forming part of Letters Patent No. 316,866, dated April28, 1885.

Application filed September 5, 1884. (N model.)

1e and it consists in anoveldiefor holding the nuts 7 while beingpunched, and in the construction and arrangement of the working parts ofthe machine, as hereinafter more fully specified, and particularlypointed out in the claims.

Referring to the drawings, Figure 1. is a plan view of the machine; Fig.2, a side elevation of theworking parts, with the bed in section on theline a: 00, Fig. 1., and one of the bearings B removed. Fig. 3 shows thefeed-cam w in vertical section on the line 3 y, Fig. 1. Fig. 4. is avertical section through the feedrolls on the line 2 2, Fig. 1. Fig. 5is a horizontal section lengthwise through the punches, cutters anddies, on the line a: 00, Fig. 2. Fig. 6 is a vertical section throughwm, Fig. 5. Fig. 7 is a plan of the link and latch in Fig. 6. Fig. 8 isan end view of the die'holder b and adjustable die. Fig. 9 is across-section through :10 00, Fig. 1, showing the slide-gibs a Fig. 10is an 0 end View of the head g, dies g and punches.

Fig. 11 shows the method of fastening the flywheel on the shaft, andFig. 12 is an end view of the guide 19 The operative parts of themachine are ar- 3 5 ranged upon a bed, A, mounted upon suitable legs. Atone end of the bed are bearings B, in which a cam-shaft, O, rotates,with the a double cams c and c and eccentric e fixed thereon between thebearings. A reciprocat- 4o ing slide, F, with lateral gibbed guides f,which traverse in guideways on the bed is connected to the eccentric bya pin and pitman, g, at such an angle that the pressure of the eccentricon the slide is always downward.-

5 On the end of the slide opposite the pitman is a head, g, in which thedies g are held. Another slide, h, composed of rectangular side pieces,arranged one upon either side of the slide F, and connected by across-piece, h, carries the punches k Forward motion is imparted to theslide h by the cams a bearing against the steel-plated ends j of thesidepieces. Backward motion of the slide is derived from the cams 0*bearing against steel blocks on the guide-bars i, which bars are at- 5 5tached to the side pieces, h, and rest on the end of the bed guided by acap-block, i. The end of the slide opposite to the shaft is supported bylateral guides 70, traversing ways in the bed and gibbed, as shown inFig. 9. The points of 6 the cams c are formed of steel pieces j,adjustably bolted thereto, so that they may be moved outward tocompensate for wear. The steel blocks 1' are also adjustable on the barsi, to compensate for the wear of the cams c".

The shanks of the punches h are received in a block, Id, and heldtherein by pins h passing down through the block and enteringdepressions l in the punches. The pins are held down by a clamp, Z,pressed upon them by a screw, 1 The block If fits a recess, a, in thecross-piece h, and is held therein by a cap, a, and adjusted by aset-screw, 04. The projecting end of the block 71. is guided in the head9, in a slot, m. Continuous with this slot is a recess for the receptionof the case a, which abuts against the shoulder n and is held inposition by a clamping cap, m, and screws. This case forms a holder forthe pair of dies g the longer of which is a cutting-die. The dies areclamped down in the case or holder by means of a set-screw, m Fig. 10,passing through the cap m and bearing upon a shoe, m. The shoe isgrooved lengthwise along the center of its under surface, thereby evenlydistributing the pressure of the screw upon both dies. The dies aresecured laterally by a wedge, 0, forced in between them and the side ofthe holder. The wedge is prevented fro backing out by a pinching-screw,o.

The dies 9 are perforated axially throughout their length, andcorresponding holes are formed in the abutment 0 of the holder at. Thepunches h pass through these holes and are snugly fitted in the bores ofthe dies g ex- 5 tending through them. In alignment with the dies 9 in aholder, 1 fitted in a movable head,

1), is a similar pair of dies, 19, the longer of which is also acutting-die. Both holder and dies are clamped in the head by means of ascrew, 10, and button-clamp p bearing upon a shoe, q, similar to theshoe m.

A vertical hole, r, is formed through the head 1), and communicates bypassages 'r with the perforations in the dies 12 for the exit of thenut-piercings. The head abuts against a thrustbloek, p, on the bed, andis moved in a guide, by means of a latch-and-link connection with theslide F.

The link s, Fig. 7, is fastened at one end by a pin, 8 to the under sideof the slide F, and bears at its opposite end'on a T-headed square pin,8, passing through a slot, 8 in the link, andscrewed in the head 1). Thelength and position of the slot 8 are such that the pin is engaged bythe bridge 3" at the end of the slot just as the eccentric approachesthe end of its outward throw, and moves the head 1).

Over the link and turning at one end on the pin s is a latch, 8", with ashoulder, s, and beveled surface, 8 on its opposite end. A spring, I,presses the latch against a pin, p inserted in the guide f, and asthebeveled surface slides over the pin p the latch oscillates. Theposition of the pin relative to the beveled surface 8 is such that theshoulder a swings in front of the pin 8 just as the latter is engaged bythe link, and when the slide F reverses its motion the latch pushes thepin 8 and head 1) before it, disengaging from the pin just as the headabuts against thethrust-bloek, where it rests until the succeedingstroke of the slide.

The projecting ends of the dies 1) are supported in an adjustable die,13*, Fig. 8, which is held in a die-holder, b, by means ofclamping-bolts b and set-screws 0 The opening in the die is the exactsize of the dies p, and to compensate for wear the die is made in threeparts, a, a, and a As the opening wears larger it can be contracted tofit the cuttingdies by grinding the parts a and c at the joints of thedie.

Alignment of the opening with the dies 9 and punches is provided for byadjusting the.

die 13 in the die-holder by means of set-screws b and the holes for thebolts 11 are elongated so that the way 1) and head 1) may be adjusted toalign with the die 13. These advantages of adjustment are indispensableto the production of perfect nuts.

The die-holder I) is bolted to the bed, abutting against the way 21 andon its upper side are two uprights, t,Fig.8,forming guideways in which avertical slide, t travels, operated by a rock-arm, 15 on a shaft, a,Fig. 1, arranged in bearings in the uprights. The lower end of the slidecarriesa sheet-metal strip, 15 Fig. 2, for removing the nuts from thedies when they may adhere thereto. The slide 25 is lifted by the actionof a springbar, t, fastened on the slide Fand earryingablock, t, the endof which engages the upper end of a lever, t on the end of therock-shaft. To the opposite end of the lever is attached a spring, a. Aninclined surface on the block t travels over a pin, a fixed in one ofthe uprights t, and lifts the block from engagement with the lever twhen theslidet has been raised toits proper height. As the lever becomesdisengaged a hook, n pivoted on one of the uprights and operated by aspring, engages a projection, to, 011 the lever t and holds the leverstationary untiLt-he head 1) and dies 1) push the nuts out of the die Bwhen an adjustable screw, uflin a projection on the head comes incontact with and disengages the hook it, from the lever, and the removerdescends with a sharp blow, knocking the nuts 011' the dies. Thebar-iron for the blanks is automatically fed between the dies by gearedfeed-rolls v and guiderolls a. One of the feed-rollsis adjustable bymeans of a screw, c and movable bearings. The other feed-roll revolvesin fixed bearings and has on its shafta ratchet, v, engaged by a pawl, 0pivoted on a rod, w, which is reciprocated in supports w by means of acam, w fixed on the cam-shaft.

In order to adjustthe movement of the feedrolls, the point of the cam lis made movable and bolted to the cam ona surface diagonal to itsradius, so that it can be set out from the center, the bolt-hole in thepart I being elongated accordingly. The part 1 abuts againstaprojection, 10 on the fixed part of the cam, and shims are placedbetween the projectionzand part Z as the latter is moved out to lengthenthe cam.

A lily-wheel, 10", Fig. 11, is arranged upon either thepulley or pinionshaft and fixed thereon by means of a friction-disk, w, and keyw",passing through the shaft. The key forces the hub of the wheel againstthe disk to, producing sufiicient friction to hold the wheel firmly onthe shaft in the ordinary operation of the machine, but allowing it toslip if any part of the machine becomes blocked.

Constructed as above described and shown, the operation of my improvednut-machine is as follows: The bar-iron is fed by the rolls a into theadjustable die 13 through a depression, h, in the face of the part a,and stops against the part b resting against the longer of the dies 1)and the side of the part a. In the revolution of the cam-shaft the dies9 which are arranged to match the dies 19, advance, and the longer dieshears a nut out of the bar of iron, leaving a similar nut on the end ofthelon ger of the opposite dies 1). After being cut the two nuts remainclamped between the ends of the dies while the eccentric is passing itsdead-center, and while so compressed the punches 7L2 advance and piercethe nuts. The punches and dies then retreat, and as the eccentricapproaches the opposite end of its throw the dies 1) advance, operatedby the latch and link 8 and s, and eject the nuts from the die B. Atthis point the set-screw a trips the hook a and the remover, having beenpreviously raised with the advance of the eccentric, descends with asharp blow, operated by the spring a and removes the nuts.

What I claim as new, and desire to secure by Letters Patent, is

1. In a nut-machine a die, 13, composed of the three mutually-adjustable parts, a, a and a as and for the purpose specified.

2. The combination, with the die-holder b, of the adjustable die 13*,fastened and adjusted therein, substantially in the manner and for thepurpose specified.

3. In a nut-machine, the method of securing the dies 9 in their holderby means of a grooved shoe and wedge, which are held in place byclamping cap and screws, substan tially as described.

4. The combination of the holder 1%, dies 9 and Wedge 0, secured bypinching-screw, with the head 9, shoe m and clamping-cap m provided witha set-screw, substantially in the manner specified.

5. Aremover for a nut-machine, consisting of a vertical slide, 17',operated by a rock-shaft, u, and arm t and carrying metal strips forknocking off the nuts, substantially as described.

6. In the removing mechanism of a nut-machine, a lever, t", operatingthe rock-shaft and remover, and oscillated in one direction by a springand in the opposite direction by a re ciprocating and disengagingspring-latch, P, in the manner substantially as described.

7 In a nut-removin g mechanism, the combination, with the lever t, foroperating the rock'shaft and remover, of a hook, 20 adapted to engageand hold the lever while disengaged from the latch, and to be releasedby an adjustable trip fixed on the head 1;, as and for the purposespecified.

8. The combination of the reciprocating spring-bar t the lever toperating the rockshaft and remover, the spring-actuated hook u adaptedto engage and hold the lever while disengaged from the bar, and theadjustable trip 1?, fixed on the head 1), all arranged in the manner andfor the'purpose specified.

9. In a nut-machine, the combination, with 40 the slide F, of a link, 8,adapted to impart forward motion to the head 11 and dies 1), and alatch, 8 adapted to impart backward motion to the same by engagementwith the stud s, fixed on the head, all arranged in the mannersubstantially as described.

RICHARD T. BARTON. Witnesses:

JULIUs TWISS,

DAVID K. ANDREWS.

